CVE-2016-6620
An issue was discovered in phpMyAdmin. Some data is passed to the PHP unserialize() function without verification that itโs valid serialized data. The unserialization can result in code execution because of the interaction with object instantiation and autoloading. All 4.6.x versions (prior to 4.6.4), 4.4.x versions (prior to 4.4.15.8), and 4.0.x versions (prior to 4.0.10.17) are affected.
Source: CVE-2016-6620